Yamaha WR450F, Owner'S Service Manual

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ENG
CARBURETOR
11. Install:
• Needle valve
1
• Float
2
• Float pin
3
NOTE:
• After installing the needle valve to the float,
install them to the carburetor.
• Check the float for smooth movement.
12. Install:
• O-ring
• Leak jet
1
• Float chamber
2
• Bolt (float chamber)
3
• Cable holder (throttle stop screw cable)
4
• Hose holder (carburetor breather hose)
5
13. Install:
• Diaphragm (air cut valve)
1
• Spring (air cut valve)
2
• O-ring
3
• Air cut valve cover
4
• Holder (cylinder head breather hose)
5
• Screw (air cut valve cover)
6
6
5
3
4
1
2
14. Install:
• Diaphragm (accelerator pump)
1
• Spring
2
• O-ring
3
• Cover
4
• Hose holder (drain hose)
5
• Screw (cover)
6
NOTE:
Install the diaphragm (accelerator pump) with
its mark
a
facing the spring.
15. Install:
• Jet needle
1
• Collar
2
• Spring
3
• Needle holder
4
• Throttle valve plate
5
To throttle valve
6
.
5
6
1
2 3
4